diff --git a/libexec/bats b/libexec/bats
index 160e44b..cb51fc9 100755
--- a/libexec/bats
+++ b/libexec/bats
@@ -56,4 +56,9 @@ else
   shift
 fi
 
-exec bats-exec-test $count_only "$(expand_path "$filename")" "$@"
+if [ -d "$filename" ]; then
+  shopt -s nullglob
+  exec bats-exec-suite $count_only "$(expand_path "$filename")"/*.bats
+else
+  exec bats-exec-test $count_only "$(expand_path "$filename")" "$@"
+fi
diff --git a/libexec/bats-exec-suite b/libexec/bats-exec-suite
new file mode 100755
index 0000000..e5389ad
--- /dev/null
+++ b/libexec/bats-exec-suite
@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -e
+
+count_only=""
+if [ "$1" = "-c" ]; then
+  count_only=1
+  shift
+fi
+
+trap "kill 0; exit 1" int
+
+count=0
+for filename in "$@"; do
+  count=$(($count + $(bats-exec-test -c "$filename")))
+done
+
+if [ -n "$count_only" ]; then
+  echo "$count"
+  exit
+fi
+
+echo "1..$count"
+status=0
+offset=0
+for filename in "$@"; do
+  index=0
+  {
+    IFS= read -r # 1..n
+    while IFS= read -r line; do
+      case "$line" in
+      "ok "* | "not ok "* )
+        index=$(($index + 1))
+        echo "${line/ $index / $(($offset + $index)) }"
+        [ "${line:0:6}" != "not ok" ] || status=1
+        ;;
+      * )
+        echo "$line"
+        ;;
+      esac
+    done
+  } < <( bats-exec-test "$filename" )
+  offset=$(($offset + $index))
+done
+
+exit "$status"
diff --git a/test/bats.bats b/test/bats.bats
index e95c2d5..84d3d7c 100755
--- a/test/bats.bats
+++ b/test/bats.bats
@@ -1,11 +1,7 @@
 #!/usr/bin/env bats
 
-FIXTURE_ROOT="$BATS_TEST_DIRNAME/fixtures"
-export TMP="$BATS_TEST_DIRNAME/tmp"
-
-teardown() {
-  rm -f "$TMP"/*
-}
+load test_helper
+fixtures bats
 
 @test "no arguments prints usage instructions" {
   run bats
diff --git a/test/fixtures/empty.bats b/test/fixtures/bats/empty.bats
similarity index 100%
rename from test/fixtures/empty.bats
rename to test/fixtures/bats/empty.bats
diff --git a/test/fixtures/environment.bats b/test/fixtures/bats/environment.bats
similarity index 100%
rename from test/fixtures/environment.bats
rename to test/fixtures/bats/environment.bats
diff --git a/test/fixtures/failing.bats b/test/fixtures/bats/failing.bats
similarity index 100%
rename from test/fixtures/failing.bats
rename to test/fixtures/bats/failing.bats
diff --git a/test/fixtures/failing_and_passing.bats b/test/fixtures/bats/failing_and_passing.bats
similarity index 100%
rename from test/fixtures/failing_and_passing.bats
rename to test/fixtures/bats/failing_and_passing.bats
diff --git a/test/fixtures/load.bats b/test/fixtures/bats/load.bats
similarity index 100%
rename from test/fixtures/load.bats
rename to test/fixtures/bats/load.bats
diff --git a/test/fixtures/output.bats b/test/fixtures/bats/output.bats
similarity index 100%
rename from test/fixtures/output.bats
rename to test/fixtures/bats/output.bats
diff --git a/test/fixtures/passing.bats b/test/fixtures/bats/passing.bats
similarity index 100%
rename from test/fixtures/passing.bats
rename to test/fixtures/bats/passing.bats
diff --git a/test/fixtures/setup.bats b/test/fixtures/bats/setup.bats
similarity index 100%
rename from test/fixtures/setup.bats
rename to test/fixtures/bats/setup.bats
diff --git a/test/fixtures/teardown.bats b/test/fixtures/bats/teardown.bats
similarity index 100%
rename from test/fixtures/teardown.bats
rename to test/fixtures/bats/teardown.bats
diff --git a/test/fixtures/test_helper.bash b/test/fixtures/bats/test_helper.bash
similarity index 100%
rename from test/fixtures/test_helper.bash
rename to test/fixtures/bats/test_helper.bash
diff --git a/test/fixtures/suite/multiple/a.bats b/test/fixtures/suite/multiple/a.bats
new file mode 100644
index 0000000..fbc1f38
--- /dev/null
+++ b/test/fixtures/suite/multiple/a.bats
@@ -0,0 +1,3 @@
+@test "truth" {
+  true
+}
diff --git a/test/fixtures/suite/multiple/b.bats b/test/fixtures/suite/multiple/b.bats
new file mode 100644
index 0000000..bb965a4
--- /dev/null
+++ b/test/fixtures/suite/multiple/b.bats
@@ -0,0 +1,7 @@
+@test "more truth" {
+  true
+}
+
+@test "quasi-truth" {
+  [ -z "$FLUNK" ]
+}
diff --git a/test/fixtures/suite/single/test.bats b/test/fixtures/suite/single/test.bats
new file mode 100644
index 0000000..e8182ce
--- /dev/null
+++ b/test/fixtures/suite/single/test.bats
@@ -0,0 +1,3 @@
+@test "a passing test" {
+  true
+}
diff --git a/test/suite.bats b/test/suite.bats
new file mode 100644
index 0000000..5d5132f
--- /dev/null
+++ b/test/suite.bats
@@ -0,0 +1,43 @@
+#!/usr/bin/env bats
+
+load test_helper
+fixtures suite
+
+@test "running a suite with no test files" {
+  run bats "$FIXTURE_ROOT/empty"
+  [ $status -eq 0 ]
+  [ $output = "1..0" ]
+}
+
+@test "running a suite with one test file" {
+  run bats "$FIXTURE_ROOT/single"
+  [ $status -eq 0 ]
+  [ ${lines[0]} = "1..1" ]
+  [ ${lines[1]} = "ok 1 a passing test" ]
+}
+
+@test "counting tests in a suite" {
+  run bats -c "$FIXTURE_ROOT/single"
+  [ $status -eq 0 ]
+  [ $output -eq 1 ]
+
+  run bats -c "$FIXTURE_ROOT/multiple"
+  [ $status -eq 0 ]
+  [ $output -eq 3 ]
+}
+
+@test "aggregated output of multiple tests in a suite" {
+  run bats "$FIXTURE_ROOT/multiple"
+  [ $status -eq 0 ]
+  [ ${lines[0]} = "1..3" ]
+  echo "$output" | grep "^ok . truth"
+  echo "$output" | grep "^ok . more truth"
+  echo "$output" | grep "^ok . quasi-truth"
+}
+
+@test "a failing test in a suite results in an error exit code" {
+  FLUNK=1 run bats "$FIXTURE_ROOT/multiple"
+  [ $status -eq 1 ]
+  [ ${lines[0]} = "1..3" ]
+  echo "$output" | grep "^not ok . quasi-truth"
+}
diff --git a/test/test_helper.bash b/test/test_helper.bash
new file mode 100644
index 0000000..9e10401
--- /dev/null
+++ b/test/test_helper.bash
@@ -0,0 +1,11 @@
+fixtures() {
+  FIXTURE_ROOT="$BATS_TEST_DIRNAME/fixtures/$1"
+}
+
+setup() {
+  export TMP="$BATS_TEST_DIRNAME/tmp"
+}
+
+teardown() {
+  rm -f "$TMP"/*
+}